The correct option is(A): MgCO3
Thermal stability order
\({K_2CO_3 > Na_3CO_3 > Ca CO_3 >MgCO_3}\)
Therefore \({MgCO_3}\) releases \({CO_2}\) most easily
\({MgCO_3 ->[\Delta] MgO + CO_2}\)
Ion having highest hydration enthalpy among the given alkaline earth metal ions is:
Predict the major product $ P $ in the following sequence of reactions:
(i) HBr, benzoyl peroxide
(ii) KCN
(iii) Na(Hg), $C_{2}H_{5}OH$
AB is a part of an electrical circuit (see figure). The potential difference \(V_A - V_B\), at the instant when current \(i = 2\) A and is increasing at a rate of 1 amp/second is: